body, html {
    font: 12px/1.7em arial, sans-serif;
    background-image: url(../images/background.png);
    margin: 0;
    padding: 0;
    background-repeat: no-repeat;
    background-size: cover;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    width: 100%;
    height: 100%;
    background-position: center center;
}
#login_background {
    width: 500px;
    display: flex;
    justify-content: center;
    align-items: center;
}
#login h1{
    text-align: center;
    color: white;
}
.field{
    color: white;
    font-weight: 500;
}
.field input{
    width: 100%;
    padding:5px 0;
    font-size: 15px;
    color:#fff;
    margin-bottom:30px;
    border:none;
    border-bottom: 1px solid #fff;
    outline: none;
    background:transparent;
}
.login_actions{
    display: flex;
    justify-content: center;
    align-items: center;
}
button {
    height: 30px;
    padding: 0 2em;
    background-color: #1aab8a;
    color: #fff;
    border: none;
    outline: none;
    font-size: 1.6em;
    cursor: pointer;
    position: relative;
    transition: all ease 800ms;
}
button:hover {
    background-color: #fff;
    color: #1aab8a;
}
button:before, button:after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 0;
    height: 2px;
    background-color: #1aab8a;
    transition: all ease 400ms;
}
button:after {
    top: inherit;
    right: inherit;
    left: 0;
    bottom: 0;
}
button:hover:after, button:hover:before {
    width: 100%;
    transition: all ease 800ms;
}